Renata 371 SR920SW Silver Oxide Watch Batteries - 50 Count

In this review the Renata 371 SR920SW coin cell pack is examined for anyone who needs reliable replacements for watches and small electronics. The bottom line: these Swiss-made silver oxide cells deliver consistent voltage and low self-discharge, making them a sensible choice for keeping timepieces and memory-backed devices running without frequent swaps. For shoppers who value leakage resistance and stable performance in bulk, this 50 count offers clear convenience and predictable quality.

Key Features

• Nominal Voltage: Each cell provides a steady 1.55V output, which keeps devices operating at expected levels without voltage drop near new condition.
• Capacity: With a nominal capacity of 35 mAh, the cells offer sufficient energy for watches and small electronics over typical use cycles.
• Leakage Resistance: The silver oxide chemistry is noted for superior leakage resistance, reducing the risk to delicate device contacts.
• Low Self-Discharge: High capacity retention in storage means the batteries hold charge well between purchases and long-term storage.
• Wide Compatibility: These cells work in watches, cameras, calculators, keyless car remotes, organizers and memory backup for computer equipment.

Who It's For

The Renata 371 SR920SW pack is best for watch owners, hobbyists and technicians who replace multiple coin cells or prefer buying in bulk to avoid frequent restocking. It suits anyone who needs dependable voltage and wants to minimize the chance of leakage damaging a device.

Those looking for rechargeable options or higher-capacity cells for power-hungry electronics should look elsewhere; this type is optimized for timekeeping and low-drain electronics rather than continuous high current draw.

Pros & Cons

Pros

• Consistent 1.55V output provides reliable operation for watches and timing devices.
• Swiss manufacturing and silver oxide chemistry contribute to good overall battery quality and fit.
• Low self-discharge makes the 50 count useful for spare storage without rapid capacity loss.
• Works across a range of small electronics including remotes and memory backup circuits.

Cons

• Battery life and time retention show mixed reports among users, so individual device drain may vary.
• Not suitable for devices that require rechargeable or very high current cells.

Specifications

Our Verdict

The Renata 371 SR920SW 50 pack is a practical buy for anyone who needs a reliable supply of watch and small-electronics batteries. Its stable 1.55V output, low self-discharge and solid leakage resistance make it good value for bulk buyers and technicians who expect consistent replacements. Choose these if you want dependable silver oxide cells for timepieces and low-drain devices.

Frequently Asked Questions

Will these batteries fit standard watch models?
Yes, the 371 SR920SW is a standard silver oxide coin cell size commonly used in watches and fits compatible models.

How long do these retain charge in storage?
They have low self-discharge and retain capacity well in storage, so a sealed pack remains useful as spares for an extended period.

Are these safe to use in keyless remotes and memory backup?
Yes, the chemistry and stable voltage make them suitable for remotes and CMOS memory backup applications.